Pressure applying means for cloth rolls in looms



W. H. BAHAN Aug. 22, 1950 PRESSURE APPLYING MEANS FOR CLOTH ROLLS IN LOOMS Fiied Nov. 1'1, 1947 2 Sheets-Sheet 1 N oE S 3. nv mm on on HQ wn hm/ III III mm m- WILLIAM H. BAHAN Aug. 22, 1950 w. H. BAHAN 2,519,424

PRESSURE APPLYING MEANS FOR CLOTH ROLLS IN LOUMS Filed Nov. '17, 1947 2 Sheets-Sheet 2 FIG. 3

FIG 4 3 vwc/wfov. WILLiAM H. BAHAN Patented Aug. 22, 1950 UNITED STATES OFFICE -PRESSURE APPLYING MEANS FOR CLOTH ROLLS IN LOOMS William H. Bahan, Greenville, S. 0.; EdwardF. Bahan administrator of said william H. fBahan,

Z deceased Application November 17, 1947,5Seri'al No. 786,473

'3 Claims. 1

This invention relatesto the pressure-applying'means' to the cloth roll pin "01' .a' loom for holding the roll of cloth thereon in engagement with thesand roll.

It is an object of this invention to provide means for applying pressure to the cloth roll pin of the loom by eliminating the rack and pinion connection heretofore used between a horizontally disposed spring pressed shaft and the upwardly movable members in which thecloth roll pinis mounted and in lieu thereof providing a cylinder or pulley on each end ofthe spring pressed shaft to which is secured a flexible cord or cable and having the other ends of theflexiblecords or cables secured to the lower, end of the vertically movable means which support the cloth roll pin in the upper end thereof.

Some of, the objects of the invention having been stated, other objectswwill appear asthe description proceeds when taken in connection showing the mechanism' in positionbefore the roll of cloth has attained large proportions;

Figure 4 is an isometric view .ofthe lower lefthand end of Figure 1 looking toward the left; -Figure.5 .is a vertical sectional view through a portion of the mechanism shown in: Figure-4,

and taken along the line 55 in Figure 1.

Referring more-specifically to the drawings, the numerals I6 and II- indicate the side-frames of a loom which have a breast-beam unsecured across the top thereof in which is mounted a sand roll I3. Over this sand roll, cloth I4 passes on its way to the cloth roll pin. The lower portions of the side frames I and l I are secured to each other by a bottom girt I on which are mounted opposite hand members I6, they being identical and having like reference characters, except that one is opposite hand to the other.

These members I6 are secured at their upper ends by means of bolts I8 to downwardly projecting portions IS on the breast beam I2. These members I6 have an outwardly and inwardly projecting lug 28 near the lower end thereof and immediately below these lugs, by means of bolts 2 I, the lower ends of the members I6 are secured to the bottom girt I3.

The members I6 are slotted and have portions 23 and 24 projecting inwardly toward each other and beneath the inwardly projecting portions of vscrew w. .mounted a drum or pulley 56, .like reference characters applying to the two drums, and these the-lugs; and the spaced-portions 23 and 24, vertically disposed cloth roll pinsupporting members-26*;are mounted for vertical sliding'movement. The members 26 also penetrate suitable -holes2'l in the bottom girt I5.

Each of these members 26 has -a notch 23 at the upper end thereof in which the ends of a cloth roll pin 29 are mounted for rotation. Each of the members 26 has a vertically disposed groove SZtherein, the purpose of which will be presently'described.

Mounted on the bottom girt I5 is abra'ck'et having an elongated bearing portion 36 in which is rotatably mounted a shaft '31. This shaft "31 has fixedly. secured thereon a longitudinally split worm gear.38 which meshes with a worm "it rotatably mounted in the bracket 35 and having a crank 4| ,for imparting rotation .to the worm gear. 40, such as .shown in my prior Patent No. 2,226,2'77 of'December 24, 1940.

.The hub portion of split .gear 38 has adjustably secured thereon a clamping collar 43 to which is secured one endof atorsion, spring 44, the other ,endlofthetorsion spring being secured to a collar 45 fixedly secured on the shaft 3! bya set Onleach ,endpf theshaft 3'? there is drums have a .notch 52 -cut in the periphery thereof-in thevertical face of which is disposed ,a-bore-54 and in which is secured by means. of a set screw 55 one end of a flexible cord or cable 56 which cable extends outwardly and downwardly in the groove Hand-penetrates asubstantially transverse bore "S'I-inthe lowerend-of the member. 26,.and is'secured in position in'this bore 51 byanysuitable means such asia set screwi58.

iThe-sand roll I3 is drivenby ,any ,suitable means, not shown, to impart rotation to the sand roll and it usually has a roughened surface for imparting rotation to the cloth on the cloth roll pin 29.

In the beginning of the formation of a cloth roll, the crank 4| is turned to thus turn the shaft 31 to which is secured the drums 56. The drums 59 wind up the flexible cables 56 to thus raise the members 26 until the members 26 are in substantially fully raised position. Then the cloth is turned around the cloth roll pin a few times to secure it in position and then the crank 4| is turned to press the cloth on the cloth roll pin 29 against the sand roll I3, The crank II is continued to be turned until suitable tension is present in the spring 44 and at which time increased tension would cause the collar 43 to slip 3 on the split gear 38 as well as causing the split gear 38 to slip and rotate on the shaft 31.

In this position the members 26 are moved to their highest position and as the roll of cloth increases in diameter, the members 26 are forced downwardly against the torsion of spring 44 to cause the shaft 31 to rotate within the gear 38 and the collar 43 will slip and rotate around the gear 38 to thereby insure a like tension between the sand roll l3 and the cloth wound about the pin 29 until the roll of cloth C is fully finished, the parts will occupy substantially the position shown in Figures 1 and 2.

It is thus seen that instead of having pinions on the shaft 31 and a rack on the members 26 which give much trouble on account of breaking and becoming marred, or especially on account of lint and grease becoming lodged in the teeth of the pinion and the rack, that I have provided a simple pulley or drum on each end of the shaft 31 with a cable connection between the drums or pulleys and the lower ends of the vertically movable members 26 which support the cloth roll.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. In a loom having a sand roll, a pair of vertically movable members mounted in the loom and having means for supporting a cloth r011 pin in the upper end thereof and having a longitudinally extending groove in their front edges in their lower portions, a transversely disposed shaft mounted in the lower end of the loom and in a plane above the lower ends of the vertically movable members and a torsion spring fixedly secured to a portion of the loom at one end and surrounding said shaft and being secured to said shaft at its other end, means for imparting rotation to the shaft to store force in the torsion spring, each end of said shaft having a drum mounted thereon the pheripheries of which are in front of and disposed adjacent said grooves and one end of a flexible cord secured in each of said drums, the flexible cords extending downwardly in said grooves and having their lower ends secured to the lower ends of the vertically movable members for supporting the cloth roll 2. In a loom having a cloth pin on which cloth is rolled after it is woven, said loom having a driven sand roll for contacting the cloth on the cloth pin for rolling the cloth onto the cloth pin, a pair of grooved members, the top ends of which are adapted to support the cloth pin, a pair of cables connected to the lower ends of the grooved members and extending upwardly along the groove and being secured to a pair of pulleys fixed on the ends of a transversely disposed shaft mounted in the loom, a collar fixed on said shaft to which one end of a torsion spring is secured, a worm and gear connection for imparting rotation to the shaft and to which the other end of the torsion spring is secured and a crank connected to the worm whereby by turning the crank, torsion will be transmitted through the torsion spring to the collar and will thus rotate the transversely disposed shaft and raise the grooved members upwardly to cause the pin to contact the sand roll.

3. In a loom having a cloth pin on which cloth is rolled after it is'woven, said loom having a driven sand roll for contacting the cloth on the cloth pin for rolling the cloth on the cloth pin, a pair of grooved members, the top ends of which are adapted to support the pin. a pair of cables connected to the lower ends of the grooved members and extending upwardly along. the grooves and being secured to a pair of pulleys fixed on the ends of a transversely disposed shaft mounted in the loom, a collar fixed on said shaft to which one end of a torsion spring is secured, a worm and gear connection for imparting rotation to the shaft and to which the other end of the torsion spring is secured and a crank connected to the worm whereby by turning the crank, torsion will be transmitted through the torsion spring to the collar and Will thus rotate the transversely disposed shaft and raise the grooved members upwardly to cause the cloth pin to contact the sand roll, means whereby as the amount of cloth is increased on the cloth pin, the torsion on the spring will cause the transversely disposed shaft to rotate according to the pressure between the roll of cloth and the sand roll to thus allow the cables to move downwardly with the grooved members.

WILLIAM H. BAHAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 708,251 Owen Sept. 2, 1902 2,425,781 Bergstrom et a1. Aug. 19, 1947 FOREIGN PATENTS Number Country Date 475,641 France June 1, 1915 

